Apparatus for making paper bottles.



Gav I. JENKINS. APPARATUB FOR MAKING PAPER BOTTLES.

AIPLIOA'HOH IILBD HARM, 1909- Eaten ay 31, 1910.

nmmtoz I i nrrnn snares PATENT @TTTQE.

CHARLES FRANCIS JENKINS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO SINGLE SERVICE PACKAGE CORPORATION OF AMERICA, OF NEW YORK, Y., A

CORPORATION OF NEW JERSEY.

APPARATUS FOR MAKING PAPER BOTTLES.

Specification of Letters Patent.

Application filed March 22, 1909. Serial No. 484,874.

To all whom 'it may concern:

Be it known that 1, CHARLES FRANCIS JENKINS, citizen of the United ,States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Apparatus for Making Paper Bottles, of which the following is a specification, reference being had therein to the accompanying drawing.

The object of this invention is to provi e means for making straight, convolute wind paper tubes having internal circumferential ribs, usually near each end so that they may serve the double purpose of stiffening the tube and afiording shoulders against which the closures, or top and bottom of the tube may rest.. The desired tubes are,

made by winding a paper strip, as-wide as the length of the tube, upon a collapsible mandrel having circumferential grooves at the points where ribs are to be formed and pressing the primary layers of stock into these grooves, to form the ribs, and winding and cementing one or more turns of stock upon such' primary layers, without pressing these outer layers into the grooves. The exterior of the resulting tube is thus left smooth and the outer layers spanning the grooves prevents their widening after the tube is completed. The tube being thus made, the mandrel is collapsed and the tube is freed therefrom.

In the accompanying drawings, which are partly diagrammatic, Figure 1 is a plan view of a portion of a machine embodying the invention, parts bein broken away. Fig. 2 is a section on the line 22,'Fig. 1.

.Fig. 3 is a partial longitudinal section of the tube showing one rib.

In these views, A represents a drum-like collapsible mandrel having a circumferential groove B near each end mounted upon a shaft C, and having around its circum: ference a series of paper guidingrollers B. Alongside the drum is a shaft D, parallel to the shaft C, carried by arms E pivoted at F to swing toward and from the mandrel and normally held away from the mandrel by one or more springs G but forced toward the mandrel at intervals by a suitable cam H rotated by a shaft 1. Upon the shaft D disks J are fixed in osition to enter the grooves B when the aft is swung toward the mandrel. Above the shaft D is revolubly mounted a rollerK which is normally pressed against the periphery of the mandrel by springs'L. More distant from the mandrel is a parallel roller M mounted in preferably fixed bearings, and below this a parallel cement-applying roller N revolubly mounted in a vertically movable cement receptacle 0 which is raised at intervals by a suitable cam or cams P mounted on a rotary shaft Q.

In operation, a sheet R of stock is trained beneath the two rollers M, K and between the latter and the mandrel. By rotation of the roller K and the mandrel, the paper is Wound upon the latter until its end reaches the disks J, which have been swung forward by the cams H and which being held in position by the cams press the paper into the grooves during at least one complete revolution of the mandrel forming ribs T, after which the cams cease to hold the disks in position and they are swung from the mandrel by the spring G. Just before this movement of the disks the cement roller is raised by the cam P and pressed against the paper below the roller M, applying cement to its lower surface, the form of the cam being such that paper is gummed for a distance at lpaslt equal to the circumference of the manre is fed forward and pressed upon that portion of the strip alread grooved and wound upon the mandrel, it orms a smooth outer layer cemented to the entire face of the grooved portion, and the strip having been severed at the proper point, inany suitable manner, the tube is complete and the strip ready for forming a second tube in like manner. The tube being completed the mandrel is collapsed and the tube removed, after which the mandrel isrestored to normal form.

Collapsible mandrels being well known and no novelty being herein claimed for the mandrel, its construction and operation. are not herein set forth in detail.

What I claim is:

u 1. The combination with a mandrel and means for winding :1 aper stri in aplurality of turns about t e same, 0 means for pressin the ortion first wound to form circumferentia ribs as the winding pro- I portion, and means means into and outv of action at predeter- :Inined intervals, means for a plying adhesive material at predetermine intervals to paper winding upon the mandrel, and means for pressin the gummed portion upon the portion em ossed bymbeing pressed into the grooves. p

3. The combination with a rotary-mandrel having circumferential 'ooves, of rotary disks arrangedv to be forci ly'SWlJng into said ---grooves, a spring pre ssed roller parallel to and pressing againstsaid mandrel, and a reciprocatingrgumming device arranged for applying adhesive material upon widely separated transverse sections of a paper strip passing beneath the ressing roller and winding upon the man rel.

4. The combination with a collapsible mandrel circumferentially grooved near its ends of rotary disks adapted to press paperpressed roller working against the mandrel, v

an adhesive applying roller, a cam adapted to move said adhesive applying roller at intervals'against a paper strip passing between the sprin and a r01 er arranged to prevent the paper from moving from the adhesive applying roller.

In testimon whereof I afiix my signature inlpresenceo two witnesses.

CHARLES FRANCIS JENKINS.

' Witnesses: I

B. H. DAInnY,

ARTHUR L. BRYANT.

pressed roller and the mandrel, 

